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Coronary Heart Disease

Coronary heart disease (CHD) is the thinning or blockage of the coronary arteries, usually caused by atherosclerosis. Atherosclerosis (sometimes called “hardening” or “clogging” of the arteries) is the buildup of cholesterol and fatty deposits (called plaques) on the inner walls of the arteries. These deposits can restrict blood flow to the heart muscle by clogging the artery. This result in reduced supply of blood to the heart, thus heart becomes starved of oxygen and the vital nutrients it requires to work properly. This can lead to chest pain called angina. If blood supply to a portion of the heart muscle is cut off entirely, or if the energy demands of the heart become much greater than its blood supply, a heart attack (injury to the heart muscle) may occur. Coronary heart disease (CHD) is the leading cause of death for both men and women living in urban areas as compared to rural India.

References: www.cdc.gov
www.nhs.uk
www.nlm.nih.gov
www.ncbi.nlm.nih.gov
sancd.pdf
 

 

The content of this module has been validated by Dr Sandeep Seth, Department of Cardiology, All India Institute of Medical Sciences, on 23/3/2015.

The most common feature of CHD is chest pain (angina) and heart attack. Generally pain occurs when the heart is not getting enough blood or oxygen. The intensity of pain is varies from person to person.
  • It may feel heavy or like someone is squeezing the heart. There may be an uneasy feeling under breast bone (sternum), but also in neck, arms, stomach, or upper back.
  • The pain usually occurs with activity or in emotional state, and goes away with rest or a medicine called nitroglycerin.
  • Other symptoms include shortness of breath and fatigue with activity (exertion). Women, elderly people, and people with diabetes are more likely to have symptoms other than chest pain, such as:
  • Fatigue
  • Shortness of breath
  • General weakness

Risk factors associated with the conditions are:
  • Obesity
  • Smoking
  • Stress
  • Hypertension
  • Sedentary lifestyle
  • Diabetes
  • Having a family history of CHD – the risk is increased
  • High cholesterol levels in the blood
References: www.ncbi.nlm.nih.gov

                      www.nhs.uk

Tests may include:
  • Electrocardiogram (ECG)
  • A stress test : 
       Exercise stress test
       Echocardiogram stress test
      
    Nuclear stress test
  • Coronary CT angiogram
  • Coronary angiography - an invasive test that evaluates the heart arteries under x-ray
For proper diagnosis and treatment, one should refer to the physician.

References: www.ncbi.nlm.nih.gov
www.nhs.uk

Medications like Aspirin , beta blockers, nitrates, calcium channel blockers, nikoran, trimetazadine, and ranolazine along with statins.
Revascularisation procedures include Coronary artery bypass surgery and coronary angioplasty with stent implantation. 
 
Lifestyle:
  • Weight control
  • Smoking cessation
  • Avoiding the consumption of t  fats  
  • Exercise such as walking, jogging, or swimming, can help decrease blood pressure and the amount of blood cholesterol over time.
  • Decrease psychosocial stress
This is just for the understanding of health. For proper diagnosis and treatment, one should refer to the physician.
 

References: www.nhs.uk
www.ncbi.nlm.nih.gov
 

  • Eat a healthy, balanced diet.
  • Low-fat, high-fibre diet is recommended, including plenty of fresh fruit and vegetables and whole grains.
  • Be more physically active. Healthy diet with regular exercise is the best way of maintaining a healthy weight.
  • Having a healthy weight reduces chances of developing high blood pressure.
  • Keep blood pressure under control by eating a healthy diet low in saturated fat, exercising regularly, and, if required, taking the appropriate medication to lower blood pressure.
Reference: www.nhs.uk


 

  • CREATED / VALIDATED BY : NHP CC DC
  • LAST UPDATED ON : Oct 29, 2015

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The content on this page has been supervised by the Nodal Officer, Project Director and Assistant Director (Medical) of Centre for Health Informatics. Relevant references are cited on each page.